Box Fan Air Filter Hack

20 inch box fan.

Box fan air filter hack.

These filters sell for about 15 at your local hardware store. You should do the same if you try this hack. You can tape the filter to the fan. The air flow arrow on the filter needs to be pointing to the fan.

Air filters should be used in your bedroom or in the. And no box fan is engineered to withstand the extra workload of driving air through a dense filter so we can t claim this won t damage the fan s. This article is based on the 3m merv 12 20 x 20 pleated filter and the web absorber cut to fit 20 x 25 filter. 20 by 20 by 1 merv 13 furnace filter.

But a quick solution as posted by the university of michigan s medical center is to create your own filter using a box fan and a standard hepa filter both readily available in most hardware stores and. Start off by unpacking the fan and making sure that it works. Purchase a standard 20 box fan. See the graph below that shows an example of the filter fan performance.

Securely fasten a merv 13 filter to the air intake side of the fan. In the absence of other air purifiers you can create your own air filter for less than 20 by using a box fan laying around your house an air filter and some heavy tape via public health seattle king county. Experts recommend buying what s called a merv 13 or fpr 10 furnace filter and tape it to the back of a box fan. Some have wondered whether we should tape it onto the back of the box fan filter.

The hack is easy. You want the fan to pull in dirty air and push out clean air. We have tested the performance of these filter fans and they dramatically reduce fine particles and black carbon from the air. The trick involves placing a filter in front of a box fan to catch any pollution and smoke particles circulating throughout the house according to a video posted by youtube user thriftstore hacker.

Supplies you need to make your own. Building the box fan air purifier. Mike senese is the executive editor of make. Mine cost 20 at a local home improvement store.

This graph from puget sound clean air agency shows the reduction of black carbon in a 14 x 14 room after turning on a homemade air filter. There will be a little arrow on the filter showing which way the air should flow. Remember to place the filter behind the fan and use tape to secure it. Build an affordable air purifier with a box fan and hepa filter.

20 x 20 box fan. Apply gasketing to the edges of the air intake part of the fan. I used large rubber bands.